$325+ Cheap flights from Seattle (SEA) to Helsinki (HEL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HEL
Aug 11 — Aug 181
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Helsinki with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Helsinki-Vantaa are usually found in January or October, booked 73 days in advance, depart on a Wednesday or Tuesday and return on a Monday
Cheap flight deals from Seattle to Helsinki
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HelsinkiExplore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.
Explore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 12, 2026.
This oojo deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:55 pm
SEA
- HEL
2 stops13h 50m
Scandinavian Airlines
Tue 10/67:15 am
HEL
- SEA
2 stops16h 30m
Scandinavian Airlines
Deal found 7/9![Scandinavian Airlines logo]()
$458
This oojo deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Sat 9/193:10 pm
HEL
- SEA
2 stops32h 35m
Scandinavian Airlines
Deal found 7/10![Scandinavian Airlines logo]()
$508
This Mytrip deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:00 pm
SEA
- HEL
2 stops18h 50m
Multiple Airlines
Mon 10/127:05 am
HEL
- SEA
2 stops20h 50m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$511
This Mytrip deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:50 am
SEA
- HEL
3 stops24h 50m
Multiple Airlines
Tue 8/258:30 am
HEL
- SEA
2 stops22h 37m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$522
This Trip.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:40 pm
SEA
- HEL
2 stops16h 40m
Multiple Airlines
Sun 8/308:15 am
HEL
- SEA
2 stops19h 40m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$546
This oojo deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/23:55 pm
SEA
- HEL
2 stops16h 50m
Scandinavian Airlines
Wed 10/79:15 pm
HEL
- SEA
2 stops50h 30m
Scandinavian Airlines
Deal found 7/9![Scandinavian Airlines logo]()
$557
This Mytrip deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 pm
SEA
- HEL
1 stop20h 55m
Icelandair
Thu 10/83:00 pm
HEL
- SEA
1 stop12h 55m
Icelandair
Deal found 7/10![Icelandair logo]()
$560
This Mytrip deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 pm
SEA
- HEL
1 stop20h 55m
Icelandair
Wed 10/711:55 pm
HEL
- SEA
1 stop30h 45m
Icelandair
Deal found 7/9![Icelandair logo]()
$561
Best flights from Seattle to HelsinkiDiscover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
Discover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 12, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:55 pm
SEA
- HEL
2 stops13h 50m
Scandinavian Airlines
Tue 9/156:10 am
HEL
- SEA
1 stop17h 35m
Scandinavian Airlines
Deal found 7/11![Scandinavian Airlines logo]()
$618
This Icelandair deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:40 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Sun 10/252:00 pm
HEL
- SEA
1 stop13h 00m
Icelandair
Deal found 7/9![Icelandair logo]()
$732
This Turkish Airlines deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 pm
SEA
- HEL
1 stop37h 05m
Turkish Airlines
Mon 11/1612:25 pm
HEL
- SEA
1 stop38h 45m
Turkish Airlines
Deal found 7/12![Turkish Airlines logo]()
$923
This Scandinavian Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:55 pm
SEA
- HEL
2 stops21h 55m
Scandinavian Airlines
Thu 9/109:15 pm
HEL
- SEA
2 stops26h 30m
Scandinavian Airlines
Deal found 7/11![Scandinavian Airlines logo]()
$675
This Icelandair deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 pm
SEA
- HEL
1 stop33h 00m
Icelandair
Sun 10/183:55 pm
HEL
- SEA
2 stops36h 00m
Icelandair
Deal found 7/7![Icelandair logo]()
$905
This Turkish Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 pm
SEA
- HEL
1 stop37h 05m
Turkish Airlines
Sun 11/1512:25 pm
HEL
- SEA
1 stop38h 45m
Turkish Airlines
Deal found 7/7![Turkish Airlines logo]()
$943
This Scandinavian Airlines deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:55 am
SEA
- HEL
2 stops28h 35m
Scandinavian Airlines
Sun 10/254:05 pm
HEL
- SEA
2 stops39h 54m
Scandinavian Airlines
Deal found 7/11![Scandinavian Airlines logo]()
$871
This deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Sat 9/511:15 am
HEL
- SEA
1 stop12h 30m
Scandinavian Airlines
Deal found 7/11![Scandinavian Airlines logo]()
$906
Last-minute flights from Seattle to HelsinkiDiscover last-minute flight deals from Seattle to Helsinki. Data last updated July 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Helsinki. Data last updated July 12, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:40 am
SEA
- HEL
3 stops24h 40m
Multiple Airlines
Tue 8/189:05 pm
HEL
- SEA
3 stops34h 02m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$619
This Mytrip deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:00 am
SEA
- HEL
2 stops22h 40m
Multiple Airlines
Tue 8/257:05 am
HEL
- SEA
2 stops24h 02m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$522
This Ticket deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:55 pm
SEA
- HEL
2 stops16h 35m
Scandinavian Airlines
Fri 9/411:15 am
HEL
- SEA
1 stop12h 30m
Scandinavian Airlines
Deal found 7/10![Scandinavian Airlines logo]()
$673
This Trip.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:40 pm
SEA
- HEL
2 stops16h 40m
Multiple Airlines
Sun 8/308:15 am
HEL
- SEA
2 stops19h 40m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$546
This oojo deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Sun 9/67:35 pm
HEL
- SEA
2 stops52h 10m
Scandinavian Airlines
Deal found 7/9![Scandinavian Airlines logo]()
$588
This oojo deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Mon 9/219:05 pm
HEL
- SEA
1 stop26h 40m
Scandinavian Airlines
Deal found 7/10![Scandinavian Airlines logo]()
$589
This Justfly.com deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:15 am
SEA
- HEL
2 stops27h 10m
Scandinavian Airlines
Mon 9/74:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 7/10![Scandinavian Airlines logo]()
$681
One-way flights from Seattle to HelsinkiSearch for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
Search for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated July 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:25 pm
SEA
- HEL
2 stops35h 55m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 pm
SEA
- HEL
3 stops42h 25m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:35 am
SEA
- HEL
2 stops19h 25m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:08 am
SEA
- HEL
2 stops20h 52m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:00 am
SEA
- HEL
3 stops45h 25m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:59 pm
SEA
- HEL
2 stops29h 01m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:35 am
SEA
- HEL
2 stops19h 25m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:25 pm
SEA
- HEL
2 stops53h 45m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$371
This Ticket deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:40 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Deal found 7/8![Icelandair logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:40 am
SEA
- HEL
3 stops27h 25m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$381
Find flight deals from Seattle to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $458 (oojo) |
One-way from | $325 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,041 |
Good round-trip deal | $1,297 or less |
Good one-way deal | $394 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
Use the filters below to find and compare flights from Seattle to Helsinki that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 9/1
3:55 pm-3:45 pm
2 stops13h 50m
Helsinki-Vantaa
Tue 9/15
6:10 am-1:45 pm
1 stop17h 35m
$618
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 9/1
3:55 pm-11:50 pm
2 stops21h 55m
Helsinki-Vantaa
Thu 9/10
9:15 pm-1:45 pm
2 stops26h 30m
$675
Quickest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Wed 10/21
3:40 pm-2:00 pm
1 stop12h 20m
Helsinki-Vantaa
Sun 10/25
2:00 pm-6:00 pm
1 stop13h 00m
$732
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Wed 10/21
10:55 am-1:30 am
2 stops28h 35m
Helsinki-Vantaa
Sun 10/25
4:05 pm-10:59 pm
2 stops39h 54m
$871
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Wed 10/14
7:00 pm-2:00 pm
1 stop33h 00m
Helsinki-Vantaa
Sun 10/18
3:55 pm-5:55 pm
2 stops36h 00m
$905
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 9/1
3:55 pm-3:20 pm
1 stop13h 25m
Helsinki-Vantaa
Sat 9/5
11:15 am-1:45 pm
1 stop12h 30m
$906
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 11/10
7:05 pm-6:10 pm
1 stop37h 05m
Helsinki-Vantaa
Mon 11/16
12:25 pm-5:10 pm
1 stop38h 45m
$923
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 11/10
7:05 pm-6:10 pm
1 stop37h 05m
Helsinki-Vantaa
Sun 11/15
12:25 pm-5:10 pm
1 stop38h 45m
$943
Cheapest one-way
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sat 8/15
11:25 pm-9:20 pm
2 stops35h 55m
$325
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Mon 8/31
7:00 pm-9:20 pm
2 stops16h 20m
$376
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Helsinki
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Helsinki in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Seattle with our price prediction graph.
SEA-HEL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Helsinki
How far ahead should I book a flight from Seattle to Helsinki?
The best time to book flights from Seattle to Helsinki is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Helsinki?
Currently, January is the cheapest month in which you can book a flight from Seattle to Helsinki (average of $543). Flying from Seattle to Helsinki in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to HEL?
Find hourly flight availability from Seattle to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 12, 2026.
When flying from Seattle to Helsinki, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Helsinki
Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated July 12, 2026.
Get a feel of what it's like to fly with Delta,Finnair, andScandinavian Airlines from Seattle to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Food
7.2
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Helsinki?
Book flights to Helsinki if you plan to visit one of these locationsVantaa
Lahti
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Complete your trip to Helsinki by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Helsinki by cabin class
Find flights from Seattle to Helsinki, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Helsinki
Explore flights to Helsinki departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 12, 2026.
Seattle and Helsinki flights
Browse other Seattle and Helsinki flight options. Last updated on July 12, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on July 12, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Seattle to Helsinki
Discover the top 6 airlines that operate flights from Seattle to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$323 | Average$548 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$517 | Average$874 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$526 | Average$1,020 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$725 | Average$1,148 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$790 | Average$1,183 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$852 | Average$1,246 | FlexibilityNo cancel fee | On-time76% |